<?php

namespace RedMVC\Http;
use RedMVC;

/**
 * Response class
 *
 * @category    RedMVC
 * @author      Jan Fischer, bitWorking <info@bitworking.de>
 */
class Response{
    
    protected static $_statusCodes = array(      
        // 1xx Informational
        100 => 'Continue',
        101 => 'Switching Protocols',
        102 => 'Processing',
        
        // 2xx Success
        200 => 'OK',
        201 => 'Created',
        202 => 'Accepted',
        203 => 'Non-Authoritative Information',
        204 => 'No Content',
        205 => 'Reset Content',
        206 => 'Partial Content',
        207 => 'Multi-Status',
        208 => 'Already Reported',
        226 => 'IM Used',
        
        // 3xx Redirection
        300 => 'Multiple Choices',
        301 => 'Moved Permanently',
        302 => 'Found',
        303 => 'See Other',
        304 => 'Not Modified',
        305 => 'Use Proxy',
        306 => 'Switch Proxy',
        307 => 'Temporary Redirect',
        308 => 'Permanent Redirect',
        
        // 4xx Client Error
        400 => 'Bad Request',
        401 => 'Unauthorized',
        402 => 'Payment Required',
        403 => 'Forbidden',
        404 => 'Not Found',
        405 => 'Method Not Allowed',
        406 => 'Not Acceptable',
        407 => 'Proxy Authentication Required',
        408 => 'Request Timeout',
        409 => 'Conflict',
        410 => 'Gone',
        411 => 'Length Required',
        412 => 'Precondition Failed',
        413 => 'Request Entity Too Large',
        414 => 'Request-URI Too Long',
        415 => 'Unsupported Media Type',
        416 => 'Requested Range Not Satisfiable',
        417 => 'Expectation Failed',
        418 => 'I\'m a teapot',
        420 => 'Enhance Your Calm',
        422 => 'Unprocessable Entity',
        423 => 'Locked',
        424 => 'Failed Dependency',
        425 => 'Unordered Collection',
        426 => 'Upgrade Required',
        428 => 'Precondition Required',
        429 => 'Too Many Requests',
        431 => 'Request Header Fields Too Large',
        444 => 'No Response',
        449 => 'Retry With',
        450 => 'Blocked by Windows Parental Controls',
        499 => 'Client Closed Request',
        
        // 5xx Server Error
        500 => 'Internal Server Error',
        501 => 'Not Implemented',
        502 => 'Bad Gateway',
        503 => 'Service Unavailable',
        504 => 'Gateway Timeout',
        505 => 'HTTP Version Not Supported',
        506 => 'Variant Also Negotiates',
        507 => 'Insufficient Storage',
        508 => 'Loop Detected',
        509 => 'Bandwidth Limit Exceeded',
        510 => 'Not Extended',
        511 => 'Network Authentication Required',
        598 => 'Network read timeout error',
        599 => 'Network connect timeout error',
    );
    
    protected $_status  = '200 OK';
    protected $_headers = Array();
    protected $_body    = null;    
    
    public function setStatusCode($statusCode){
        if(isset(self::$_statusCodes[$statusCode])){
            $this->_status = $statusCode.' '.self::$_statusCodes[$statusCode];
        }
    }
    
    public function addHeader($name, $value){
        $this->_headers[$name] = $value;
    }
    
    public function setBody($body){
        $this->_body = $body;
    }

    public function getBody(){
        return $this->_body;
    }
    
    public function write($data){
        $this->_body .= $data;
    }
    
    public function flush(){
        header("HTTP/1.0 {$this->_status}");
        foreach($this->_headers as $name => $value){
            header("{$name}: {$value}");
        }
        echo $this->_body;
        $this->_headers = Array();
        $this->_body = null;
    }
    
}